E-MON

Overview

E‑MON is a recognized name in electronic kWh and kW (demand) submeters and related software. Established as an independent submetering manufacturer, the E‑MON product line was acquired by Honeywell in July 2010 and continues to be offered under the Honeywell building‑automation portfolio. Over decades E‑MON established a reputation for rugged, install‑friendly solid‑state submeters that work with split‑core current sensors and provide pulse or serial communications for automatic meter reading and building integration.

What E‑MON is known for

E‑MON meters are known for: revenue‑grade kWh and kW measurement, compatibility with split‑core CTs for retrofit installation, straightforward pulse or RS‑485 communications for integration, and bundled “meter kit” SKUs that include the meter, enclosure and CTs sized to the application. The Class 2000 family in particular became a widely used submeter platform for commercial properties because it balances features and price for tenant billing, cost allocation and demand monitoring.

Main product families and technologies

• Class 2000: A three‑phase kWh and optional kW‑demand meter widely used in retrofit and new‑build submetering kits. Typical kits are offered in multiple ampere ratings (for example 100 A, 200 A, 400 A and higher) and in common voltage configurations such as 120/208 V and 277/480 V. Hardware highlights include split‑core CTs with 0–2 VAC sensor outputs, a local LCD, fixed pulse output and optional communications or interval recording accessories.
• Class 6000 (Class 6200 series): A newer generation of E‑MON meters introduced as app‑assisted, multi‑protocol smart meters with encrypted communications and modern commissioning workflows for projects that need advanced connectivity.
• Higher‑end smart meters (Class 3200 / 3400 / 5000): Offer expanded communications (Modbus RTU/TCP, BACnet MS/TP or IP), multiple pulse outputs and interval recording for analytics and tenant billing.

Common applications

E‑MON meters are used across commercial and industrial installations where measuring energy consumption by tenant, department or equipment matters. Typical applications include tenant billing and cost allocation in multi‑tenant buildings, monitoring HVAC / central plant loads, verifying energy savings for retrofit projects, demand‑charge management, equipment‑level verification for preventive maintenance, and integration with building‑management systems or energy‑analytics platforms.

Key configuration and identification points for buyers

When specifying or replacing an E‑MON meter, procurement and maintenance teams should confirm at minimum: voltage configuration, meter amperage rating, CT type and output, enclosure class (NEMA rating) and communications or pulse options. E‑MON meter kits are commonly sold with manufacturer part numbers that encode voltage, ampere rating and protocol options — the datasheet and meter nameplate should always be checked to confirm the exact SKU and capabilities.

Communications and integration

Communications options vary by model and generation. Classic Class 2000 meters typically include a fixed pulse output and have options or accessory modules for RS‑485 (Modbus RTU) or other protocols. Newer Class 6000 meters emphasize app‑assisted commissioning and multi‑protocol network options and include improved security features. For interval logging and automated billing it is common to pair meters with E‑MON software or third‑party energy‑management platforms; local IDR or gateway accessories are often required for remote data collection.

How Safsale helps buyers identify and procure the right E‑MON model

On Safsale product pages you’ll find consolidated information that speeds model identification and procurement: clear product titles, high‑resolution photos of the meter and CTs, downloadable PDF datasheets and installation manuals, and kit SKU details that match manufacturer documentation. Listings commonly include enclosure type, CT sizes, pulse and communications options, and Q&A or review sections where installers leave model‑specific notes. When replacing meters, Safsale encourages buyers to compare the existing meter nameplate and CT markings with the datasheet and to confirm whether the installation requires a plug‑in CT (split‑core) or fixed CT.

Sourcing, replacements and procurement checklist

• Verify the exact voltage and phase configuration stamped on the meter nameplate.
• Match the meter amp rating and CT type to the existing panel/feeder so you avoid undersizing.
• Check whether the meter requires external fusing or a particular fuse kit as noted in installation instructions.
• Confirm communications needs (pulse only, Modbus RTU, BACnet, Ethernet) and whether an IDR or wireless/Ethernet gateway is required.
• Use the manufacturer datasheet and installation manual to confirm mounting footprint, wiring diagrams, pulse scaling and CT wiring polarity.
• When in doubt, capture and share clear photos of the existing meter, nameplate and CTs with your Safsale procurement contact so the team can help match the correct kit or suggest compatible alternates.

Final procurement tip
E‑MON meters have been sold in many kit configurations over the years. For reliable replacements or upgrades, rely on the manufacturer datasheet and installation manual to confirm kit numbers, CT outputs and pulse scaling. Safsale listings group those documents, photos and seller Q&A side‑by‑side so buyers can confirm compatibility before ordering and reduce rework or return cycles.